F3B RC MULTI-TASK GLIDERS F3F RC SLOPE SOARING GLIDERS F3J RC THERMAL DURATION GLIDERS F3K RC HAND LAUNCH GLIDERS

FAI Sporting Code Section 4 Aeromodelling Volume F3 Radio Control Soaring Model Aircraft 2012 Edition Effective 1st January 2012 F3B RC MULTI-TASK GLIDERS F3F RC SLOPE SOARING GLIDERS F3J RC THERMAL DURATION GLIDERS F3K RC HAND LAUNCH GLIDERS F3H RC SOARING CROSS COUNTRY GLIDERS (Provisional) F3Q RC AERO-TOW GLIDERS (Provisional) Maison du Sport International Avenue de Rhodanie 54 CH-1007 Lausanne Switzerland Tel: +41(0)21/345.10.70 Fax: +41(0)21/345.10.77 Email: sec@fai.org Web: www.fai.org ANNEX 3A RULES FOR WORLD CUP EVENTS

FEDERATION AERONAUTIQUE INTERNATIONALE Maison du Sport International, Avenue de Rhodanie 54, CH-1007 Lausanne, Switzerland Copyright 2012 All rights reserved. Copyright in this document is owned by the Fédération Aéronautique Internationale (FAI). Any person acting on behalf of the FAI or one of its Members is hereby authorised to copy, print, and distribute this document, subject to the following conditions: 1. The document may be used for information only and may not be exploited for commercial purposes. 2. Any copy of this document or portion thereof must include this copyright notice. Note that any product, process or technology described in the document may be the subject of other intellectual Property rights reserved by the Fédération Aéronautique Internationale or other entities and is not licensed hereunder.

RIGHTS TO FAI INTERNATIONAL SPORTING EVENTS All international sporting events organised wholly or partly under the rules of the Fédération Aéronautique Internationale (FAI) Sporting Code 1 are termed FAI International Sporting Events 2. Under the FAI Statutes 3, FAI owns and controls all rights relating to FAI International Sporting Events. FAI Members 4 shall, within their national territories 5, enforce FAI ownership of FAI International Sporting Events and require them to be registered in the FAI Sporting Calendar 6. Permission and authority to exploit any rights to any commercial activity at such events, including but not limited to advertising at or for such events, use of the event name or logo for merchandising purposes and use of any sound and/or image, whether recorded electronically or otherwise or transmitted in real time, must be sought by way of prior agreement with FAI. This includes specifically all rights to the use of any material, electronic or other, that forms part of any method or system for judging, scoring, performance evaluation or information utilised in any FAI International Sporting Event 7. Each FAI Air Sport Commission 8 is authorised to negotiate prior agreements on behalf of FAI with FAI Members or other entities as appropriate, of the transfer of all or parts of the rights to any FAI International Sporting Event (except World Air Games events 9 ) which is organised wholly or partly under the Sporting Code section 10 for which that Commission is responsible 11. Any such transfer of rights shall be by Organiser Agreement 12 as specified in the current FAI Bylaws Chapter 1, para 1.2 Rules for Transfer of Rights to FAI International Sporting Events. Any person or legal entity which accepts the responsibility for organising an FAI Sporting Event, whether or not by written agreement, in doing so also accepts the proprietary rights of FAI as stated above. Where no formal transfer of rights has been established, FAI retains all rights to the event. Regardless of any agreement or transfer of rights, FAI shall have, free of charge for its own archival and/or promotional use, full access to any sound and/or visual images of any FAI Sporting Event, and always reserves itself the right to have any and all parts of any event recorded, filmed and/or photographed for such use, without charge. 1 FAI Statutes, Chapter 1, para. 1.6 2 FAI Sporting Code, General Section, Chapter 3, para 3.1.3 3 FAI Statutes, Chapter 1, para 1.8.1 4 FAI Statutes, Chapter 2, para 2.1.1; 2.4.2; 2.5.2; 2.7.2 5 FAI Bylaws, Chapter 1, para 1.2.1 6 FAI Statutes, Chapter 2, para 2.4.2.2.5 7 FAI Bylaws, Chapter 1, para 1.2.3 8 FAI Statutes, Chapter 5, para 5.1.1; 5.5; 5.6 9 FAI Sporting Code, General Section, Chapter 3, para 3.1.7 10 FAI Sporting Code, General Section, Chapter 1, paras 1.2. and 1.4 11 FAI Statutes, Chapter 5, para 5.6.339 12 FAI Bylaws, Chapter 1, para 1.2.2

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VOLUME F3 SOARING SECTION 4C MODEL AIRCRAFT F3 RADIO CONTROL SOARING Part Five Technical Regulations for Radio Controlled Contests 5.3 Class F3B Multi-task Gliders 5.6 Class F3J Thermal Duration Gliders 5.7 Class F3K Hand Launch Gliders 5.8 Class F3F Slope Soaring Gliders Annex 3A Rules for World Cup Events Provisional Classes: 5.H.1 Class F3H Soaring Cross Country Gliders 5.Q.1 Class F3Q Aero-Tow Gliders SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 5

THIS 2012 EDITION INCLUDES THE FOLLOWING AMENDMENTS MADE TO THE 2011 CODE These amendments are marked by a double line in the right margin of this edition Paragraph Plenary meeting approving change Brief description of change Change incorporated by Front page & page 5 Amended F3F & F3H class names to bring in line with the other soaring class names & ABR. 5.3 F3B: n/a Corrected class title from in line with the front page & ABR. 5.3.1.3 Deleted St superfluous. 5.3.1.5 Added sub-paragraph numbers. 5.3.1.9 c) Second occurrence of the word line replaced by plane. 5.3.2.2 c) Gear allowed for the winch. 2011 5.3.2.4 d) Procedure declared for model identification. 5.3.2.4 f) Landing area introduced for task B. 5.7 F3K n/a Amended the class name: Radio Controlled is superfluous. 5.7.1.1 Clarification of timekeepers position. Jo Halman Technical Secretary Tomas Bartovsky F3 Soaring S-C Chairman Jo Halman Technical Secretary 5.7.2.3 Clarification of model glider exchange procedure. 5.7.2.4 Clarification of model glider retrieving 5.7.6.2 b) Clarification who is allowed to catch the model glider 5.7.9.4 2011 Clarification of flight testing time 5.7.11.9 5.7.11.10 Annex 3A New task (three longest flights, 200 s max.) and added text to bring in line with the format of the existing tasks. New task (three last flights, 180 s max.) and added text to bring in line with the format of the existing tasks. Add classes F3F & F3K to the World Cup classes. Annex 3A Consequential change: deleted the first line in item 4 Annex 3A Throughout Throughout Throughout n/a Corrected F3 Soaring Subcommittee name. Changed m to metre/s where appropriate. Corrected e.g. to eg (correct convention). Added section headers for clarity. Tomas Bartovsky F3 Soaring S-C Chairman Jo Halman Technical Secretary Four-Year Rolling Amendments for Reference Paragraph Plenary meeting approving change Brief description of change Change incorporated by Rule Freeze 2010 n/a New text to clarify rule change cycles. Consequential change for ABR reference from A.12 to A.13. Corrected the formula for calculating round points as per 2010 revised edition. 5.7.7 2009 Amendment omitted from the 2010 edition 5.3.1.3 Transmission of information to the pilot 5.3.2.2 Slotted battery poles 5.3.2.4.c) 5.3.2.5.f) 5.6.1.3.c) Signals for task b distance Landing area at task c speed Transmission of information to the pilot 5.6.2.4 Penalty in the safety area 5.6.3.1.b) 2010 Number of attempts Jo Halman Technical Secretary Tomas Bartovsky F3 Soaring S-C Chairman Four-year Rolling Amendments for Reference /cont SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 6

cont/ Four-year Rolling Amendments for Reference Four-Year Rolling Amendments for Reference Paragraph Plenary meeting approving change Brief description of change Change incorporated by 5.6.3.1.d) n/a Consequential change ref para 5.6.3.1. b) 5.6.5.2 2010 Neutralization of the flight at fly-off 5.6.6.1 c) n/a Consequential change from a 2008 change to 5.6.12.3 5.6.11.1.a) 2010 Number of rounds without discarding 5.7.3.2 Position of the pilot during the flight 5.7.11.5 n/a Deleted the duplicated line in the example of scoring 5.3.1.2, 5.6.1.2, 5.Q.1.2.1 h) n/a Consequential change referring to ABR B.3.1. a) renumbering 5.3.1.3 c) Change of frequency spacing from 20 to 10 khz 5.3.1.3 e) Clarification of marking requirements 5.3.1.3 g) Request for 3frequencies instead of 2 5.3.1.4 2 helpers to pulleys 5.3.1.8 b) Starting order for task C 5.3.1.9 d) Duty of CD to inform the competitor 5.3.1.10 b) Penalty for contact in safety area 300 and 1000 points 5.3.2.2 l) Voltage and current must be displayed at winch test 5.3.2.2 p) 2009 Small clarification 5.3.2.2 q) Procedure at winding up the towline 5.3.2.4 c) Base crossing by any part of the model valid. Signalling. 5.3.2.5 d) Parallelism of bases 5.3.2.5 h) Orthogonality of safety plane to bases 5.6.10.10 Last sentence moved to 5.6.10.11 5.6.10.11 Paragraph from 5.6.10.10 & includes truncated 5.7.6.2 a) Amended definition of landing 5.7.7 Clarification of timing 5.7.11.3 Glider landed outside needn t be retrieved 2009 5.8 Provisional class 5.F.1 is now an official class, 5.8. Rules relocated and renumbered Front page, pages 5 & 8 Consequential changes regarding 5.8 as an official class 5.8.12 n/a Corrected the formula for calculating round points 5.3.1.7.e & f Deleted duplicated from the & corrected some English 5.6.1.3 b) 10 khz spacing below 50 MHz 5.6.1.3 f) Three crystals to offer 5.6.4 f) Re-flight for a line hindered by another line 5.6.8.3 b) Penalty for a line laying on the ground over another line 5.6.9.2 2008 Position of timekeepers during working time 5.6.10.5 Fine division of landing points 5.6.12.3 New, more general rules 5.6.12.4 & 5.6.12.5 Matrixes deleted Tomas Bartovsky F3 Soaring S-C Chairman Jo Halman Technical Secretary Tomas Bartovsky F3 Soaring S-C Chairman Tomas Bartovsky F3 Soaring S-C Chairman Jo Halman Technical Secretary Tomas Bartovsky F3 Soaring S-C Chairman Four-year Rolling Amendments for Reference /cont SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 7

cont/ Four-year Rolling Amendments for Reference Four-Year Rolling Amendments for Reference Paragraph Plenary meeting approving change Brief description of change Change incorporated by 5.7.6.1 Clarification by adding airborne Annex 3-10 F3Q F3Q Pages 1, 5, 8 n/a 2008 Changed protest fee from Swiss francs to Euros Re-named from F3I in line with CIAM naming rules Completely rewritten thermal soaring replaced by multi-task Technical Secretary Tomas Bartovsky F3 Soaring S-C Chairman Pages 5, 8, n/a Volume F3BJ changed to Volume F3 Soaring Technical Secretary RULE FREEZE FOR THIS VOLUME With reference to paragraph A.13 of Volume ABR: In all classes, the two-year rule for no changes to model aircraft/space model specifications, manoeuvre schedules and competition rules will be strictly enforced. For Championship classes, changes may be proposed in the year of the World Championship of each category. For official classes without Championship status, the two-year cycle begins in the year that the Plenary Meeting approved the official status of the class. For official classes, changes may be proposed in the second year of the two-year cycle. a) for category F3B changes can next be agreed at the Plenary meeting 2013 for application from January 2014; b) for category F3K changes can next be agreed at the Plenary meeting 2013 for application from January 2014 c) for category F3F changes can next be agreed at the Plenary meeting 2012 for application from January 2013; d) for category F3J changes can next be agreed at the Plenary meeting 2012 for application from January 2013. e) provisional classes are not subject to this restriction. SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 8

Class F3B Multi-Task Gliders VOLUME F3 SOARING PART FIVE - TECHNICAL REGULATIONS FOR RADIO CONTROLLED CONTESTS 5.3. CLASS F3B MULTI-TASK GLIDERS 5.3.1. General Rules 5.3.1.1. Definition of a Radio Controlled Glider Model aircraft which is not provided with a propulsion device and in which lift is generated by aerodynamic forces acting on surfaces remaining fixed in flight, except control surfaces. Model aircraft with variable geometry or area must comply with the specification when the surfaces are in maximum and minimum extended mode. The model aircraft must be controlled by the competitor on the ground using radio control. Any variation of geometry or area must be actuated at distance by radio control. 5.3.1.2. Prefabrication of F3B Model Aircraft Paragraph B.3.1 a) of Section 4B (Builder of the Model aircraft) is not applicable to class F3B. 5.3.1.3. Characteristics of Radio Controlled Gliders F3B a) Maximum surface area... 150 dm 2 Maximum flying mass... 5 kg Loading... 12 to 75 g/dm 2 Minimum radius of fuselage nose... 7.5 mm (see template) TEMPLATE FOR NOSE RADIUS, TOW HOOK AND MARKING b) No fixed or retractable arresting device (i.e. bolt, sawtooth-like protuberance, etc.) is allowed to slow down the model aircraft on the ground during landing. The underside of the model aircraft must not have any protuberance other than the tow-hook and surface control linkages. The tow-hook must not be larger than 5 mm in frontal width and 15 mm in frontal height. c) The radio shall be able to operate simultaneously with other equipment at 10 khz spacing below 50 MHz and 20 khz spacing above 50 MHz. d) Any transmission of information from the model aircraft to the competitor is prohibited, with the exception of signal strength and voltage of the receiver battery. Any use of telecommunication devices (including transceivers and telephones) in the field to communicate with competitors, their helpers or team managers while doing the competition task is not allowed. e) The competitor may use a maximum of three (3) model aircraft in the contest. All exchangeable parts (wing, fuselage, tail planes) must be marked uniquely and in a way that does not allow replication of this mark on additional parts. f) The competitor may combine the parts of the model aircraft during the contest; provided the resulting model aircraft used for flight conforms to the rules and that the parts have been checked before the start of the contest. See also 5.3.2.1. g) For the sake of randomness of the starting order among the successive rounds, each competitor must enter three (3) different frequencies. The competitor can be called to use any of these frequencies during the contest, so long as the call is made at least 1/2 hour prior to the beginning of a round and in written form to the affected team manager. SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 9

Class F3B Multi-Task Gliders 5.3.1.4. Competitors and Helpers The competitor must operate his radio equipment personally. Each competitor is permitted up to three (3) helpers at the winch line, including the team manager, who must not give any turning signals near base B during tasks B and C. A maximum of two (2) more helpers are permitted to be utilised only at the turn-around pulleys to cover all wind directions. 5.3.1.5. Definition of an Attempt a) For each task (ref. 5.3.2.1.), during the working time allocated, the competitor is entitled an unlimited number of attempts. An attempt starts when the model aircraft is released from the hands of the competitor or his helper(s) under the tension of the tow-line. No change of model aircraft or parts of the model aircraft is allowed after starting the first attempt. b) The competitor is entitled to a new working time period if any of the following conditions occur and are duly witnessed by an official of the contest:..i) his model aircraft in flight collides with another model aircraft in flight, or another model aircraft in the process of launch (released for flight by the competitor or his helper) or, with a launch cable during the process of launching. Should the flight continue in a normal manner, the competitor may demand that the flight in progress be accepted as official, even if the demand is made at the end of the original working time ii) his model aircraft or launch cable in the process of launch collides with another model aircraft or launch cable also in the process of launch (released for flight by the competitor or his helper), or with another model aircraft in flight. Should the flight continue in a normal manner, the competitor may demand that the flight in progress be accepted as official, even if the demand is made at the end of the original working time iii) his launch cable is crossed or fouled by that of another competitor at the point of launch of his model aircraft (released for flight by the competitor or his helper). iv) the flight has not been judged by the fault of the judges or timekeepers. v) in the case of an unexpected event, outside the competitor s control, the flight has been hindered or aborted. c) For all cases described above the competitor may demand that the flight in progress in which the event occurred will be accepted as official. Note is made that in the event the competitor continues to launch or does a re-launch after clearing of the hindering condition(s) he is deemed to waive his right to a new working time. d) When a competitor obtains a new working time period, and his model aircraft has been damaged beyond repair during the attempt where he obtained this new working time, he is entitled to continue flying the current round with his second model aircraft and this notwithstanding rule 5.3.2.1. This rule applies only when the damage inflicted to the model aircraft is directly linked to the incident that gave the right to the re-flight. e) In case of additional attempts in task A (Duration) during a round or task B (Distance) during a round, the competitors entitled to that additional attempt must fly within a group that is not complete in number or in one or more groups newly formed. If this is not possible due to a clash of frequencies, those entitled to another flight fly within their original group once more. The better of the two results will be the official score except for those competitors who are flying the additional attempt. For those the result of the repetition is the official score. 5.3.1.6. Definition of the Official Flight The official flight is the last flight performed during the working time. 5.3.1.7. Cancellation of a Flight and Disqualification a) Unless otherwise specified a flight in progress will be annulled for an infraction of any rule. In the case of intentional or flagrant violation of the rules, in the judgement of the Contest Director, the competitor may be disqualified. b) The flight in progress will be penalised with 100 points if the model aircraft loses any part either during the launch or the flight. The loss of any part in a collision with another model aircraft or during landing (ie in contact with the ground) is not taken into account. The penalty of 100 points will be a deduction from the competitor s final score and shall be listed on the score sheet of the round in which the penalisation was applied. cont/ SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 10

Class F3B Multi-Task Gliders c) The competitor is disqualified if the model aircraft in flight is controlled by anyone other than the competitor. d) If the model aircraft touches either the competitor or his helper during landing manoeuvres of task A, no landing points will be given. e) The upwind turnaround device must be fixed safely to the ground. If the pulley comes loose from its mounting support or the turnaround device is torn out of the ground, the competitor shall be given a penalty of 1000 points. The penalty of 1000 points will be a deduction from the competitor s final score and shall be listed on the score sheet of the round in which the penalisation was applied. f) The winch must be fixed safely to the ground. If the winch is torn out of the ground or rotating parts of the winch are separated (excluding parts of the tow-line) the flight is penalised with 1000 points. The penalty of 1000 points will be a deduction from the competitor s final score and shall be listed on the score sheet of the round in which the penalisation was applied. 5.3.1.8. Organisation of Starts a) The competitors shall be combined in groups with a draw, in accordance with the radio frequencies used, to permit as many flights simultaneously as possible. The draw is organised in such a way that, as far as possible, there are no competitors of the same team in the same group. b) The composition of the groups must be changed every round in order to have different combinations of competitors. For task A (duration), there must be a minimum of five competitors in a group. For task B (distance) there must be a minimum of three competitors in a group. For task C (speed) a group may consist of a minimum of eight competitors or all competitors. It is preferable for the organiser to orientate the starting order for task C at the inverted ranking calculated out of the results of all tasks flown until that moment. For the first round the starting order for task C should always be identical with the starting order of task A. Alternatively the organiser may use the task A starting order in subsequent task C rounds. c) The result of a group is annulled if only one competitor has a valid result. In this case, the group will fly again and the result will be the official result. d) The flying order of different groups is established with the draw too. A different starting order shall be used for each round. e) The competitors are entitled to 5 minutes of preparation time before the starter gives the order to count off working time. 5.3.1.9. Organisation of Contests a) For transmitter and frequency control see Section 4B, para B.10. b) The official will issue the transmitter to the competitors only at the beginning of their preparation time, according to 5.3.1.8. c) Sighting apparatus, winches or any device constituting an obstacle, should be placed on Base A and Base B, a minimum of 5 metres from the safety line for task C. Apparatus for judging the safety plane in task C shall be placed a minimum distance of 5 metres from Base A or B outside the course. d) The contest director must inform without delay the competitor and/or his team manager about any decision taken, eg in the case of a refly, a penalty etc. 5.3.1.10. Safety Rules a) The organiser must clearly mark the boundary between the landing area and the safety area assigned for other activities. b) After release of the model aircraft from the hand of the competitor or helper, any contact of the model aircraft with any object (earth, car, stick, plant, tow-line, etc) within the safety area will be penalised by 300 points, except in the circumstances described in paragraph 5.3.1.5 b) items 1, 2, 3, and 5, and in the case of a line break at the moment of release of the model aircraft. Contact with a person within the safety area will be penalised by 1000 points. The number of contacts during one attempt does not matter (maximum one penalty for one attempt). The penalty will be a deduction of 300 or 1000 points from the competitor s final score and shall be listed on the score sheet of the round in which the penalisation was applied. SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 11

Class F3B Multi-Task Gliders 5.3.2. RULES FOR MULTI-TASK CONTESTS 5.3.2.1. Definition a) This contest is a multi-task event for radio controlled gliders, which includes three tasks: A) Duration B) Distance C) Speed b) The combination of task A, B and C constitutes a round. A minimum of two rounds must be flown. Except at World and Continental Championships the last round may be incomplete, i.e. only one task or any combination of two tasks. In the case of a World Championships each competitor is entitled a minimum of five rounds subject to the provision of rule B.13, Section 4B. At the discretion of the organiser any task may be flown first in a scheduled round. c) Any single round must be completed with the same model aircraft, without any change of parts. Only the addition of ballast (which must be located internally in the model aircraft and with which the model aircraft must conform to rule 5.3.1.3.) and/or change of angles of setting are allowed. d) Variation of geometry or area is allowed if actuated at distance by radio control. 5.3.2.2. Launching a) All launching shall take place in an area as designated by the organiser with provisions made for launching into the wind. All launches will be made with an electrical powered winch approved by the organiser or Contest Director. b) Upwind turnaround devices, which must be used, shall be no more than 200 metres from the winch. The height of the axis of the turnaround pulley from the ground must not exceed 0.5 metre. Release of the model must occur within approximately 3 metres of the winch. An automatic means must be provided to prevent the line unwinding from the reel during launch. c) The winch shall be fitted with a single starter motor. The starter motor must come from serial production. It is allowed to fit the arbor of the rotor with ball or needle roller bearings at each end. The drum may be driven directly by the motor or by a gear with a constant and unchangeable transmission ratio. Any further change of the original motor will lead to disqualification according to paragraph B.18.1. The drum must have a fixed diameter. d) The power source shall be a 12 volt lead/acid battery. The cold cranking capability of the winch battery must be specified according to one of the following standards: 300 amperes max. according to DIN 43539-02 (30s/9V at 18 O C) 355 amperes max. according to IEC/CEI 95-1 (60s/8,4V at 18 O C) 500 amperes max. according to SAE J537, 30s Test (30s/7,2V at 0 O F) 510 amperes max. according to EN 60095-1 (10s/7.5V at 18 O C) Other standards are acceptable if evidence is provided that these standards are equivalent to one of the above stated standards. e) The battery must supply the winch motor with current through a magnetically or mechanically actuated switch. The use of any electronic device between the winch motor and the battery is forbidden. A competitor may interchange various parts as he wishes provided the resulting winch conforms to the rules. f) The battery must not be charged on the launching line. The motor must not be cooled, and the battery must not be heated. g) The purpose of this rule is to limit the power used for the launch. Therefore with the exception of the single winch battery, line stretch, and the small amount of energy in the rotating rotor and winch drum, no energy storage devices like flywheels, springs, weights, pneumatic devices or any similar devices is allowed. h) The complete winch (battery, cables, switch and motor) must have a total resistance of at least 23.0 milliohms. The allowed resistance may be obtained by adding a fixed resistor or resistors between the motor and battery. The design must not allow an easy change of the total resistance at the launch line (eg by shorting the resistor, or resistors) except opening and closing the circuit. SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 12

Class F3B Multi-Task Gliders i) The plus and minus pole of the battery must be readily accessible with alligator (crocodile) clips for voltage measurements. One of the cables from the battery (through which the total current flows) must be accessible for the clamp transducer (clamp meter) and the calibrated resistor. j) Measuring: The battery must stay unloaded for at least two minutes after the previous test or launch. The measuring of the circuit resistance consists of recording the battery voltage U b immediately before closing the winch switch and of recording the current I 300 and the voltage U 300 300 milliseconds (+-30 ms) after the winch current starts to flow. Before the end of this 300 ms interval the rotor of the motor shall stop rotating. k) For the test a digital voltage-measuring instrument (accuracy less or equal to 1%) is used, which enables the measurement of the voltage of the battery and the output voltage from the I/U-transducer 300 ms (+-30 ms) after the current to the winch is applied. The transducer for measuring the current may be a clamp transducer (range 0-600 or 0-1000A, accuracy less or equal to 2%) or a calibrated resistor (0.1 milliohm, accuracy less or equal to 0.5%) in the negative path of the circuit. The resistance is calculated with the formula: Measurement with clamp transducer R tot = 1000 x U b /I 300 Measurement with shunt R tot = (1000 x U b /I 300 ) 0.1 (R tot in milliohms, U b in volts, I 300 in amperes) l) A first measurement is taken in order to check the correct functioning of the measuring equipment and is discarded. Three subsequent measurements should be made with an interval of at least two minutes after the previous test or launch. The total resistance of the winch equipment is the average of these three (3) respective results. Voltage and current must be displayed to be able to calculate the total resistance by hand. If the total resistance is calculated automatically then it must be shown simultaneously with the voltage and current values. The winch equipment is declared as being in accordance with the rules if its total resistance is at least 23 mω. m) At the test of the winch before the competition the voltage of the battery U 300 must be greater or equal to 9V; this does not apply for testing during the competition. n) The organiser must appoint at least two processing officials, who will process the winches with a single measuring apparatus, or several measuring apparatus proven to produce reproducible results within a tolerance of 0.5 %. o) There must be a quick release mechanism on the power lead to the battery in order to remove power from the motor in an emergency. (Connections to the battery must be removable without the need for tools). If slotted pole shoes are used then both of them have to be slotted. p) The flight is penalised with 1000 points if the winch is not in accordance with the rules; this is valid for the flight before the test. The penalty of 1000 points will be a deduction from the competitor s final score and shall be listed on the score sheet of the round in which the penalisation was applied. q) After release of the model aircraft from the towline, the towline must be rewound without delay by operating the winch, until the parachute arrives at the turnaround device. During this procedure the towline should be guided by a helper to avoid damage to other competitors towlines. The towline must be provided with a measure eg a stopper or a metal ring, to prevent it being drawn down through the towline pulley. Then, the towline(s) must be retrieved by hand to the winch. A winch must not be operated when the towline is lying on the ground and across other towlines or strikes another towline during launching r) The towline (which must be of non-metallic material except for linkages) must be equipped with a pennant having a minimum area of 5 dm 2. A parachute (5 dm 2 minimum area) may be substituted for the pennant provided it is not attached to the model aircraft and remains inactive until the release of the cable. During complete rewinding of the line on to the winch, the parachute, if used, must be removed and inactivated. s) In the case of Continental and World Championships, a maximum of six winches and six batteries may be used during the competition by any complete team (3 pilots). Interchanging among winches and batteries while keeping compliance with the minimum resistance rule is totally under the responsibility of the team. SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 13

Class F3B Multi-Task Gliders 5.3.2.3. Task A - Duration a) This task must be completed within 12 minutes from the order of the starter, including the towing time. b) One point will be awarded for each full second from the time the model aircraft is free flying to the time the model aircraft comes to rest, up to a maximum of 600 points (i.e. 10 minutes maximum), for each full second of flight within the working time; no points will be awarded for flight time in excess of working time. The free flying of the model aircraft commences when the model aircraft is released from the towline. c) One point will be deducted for each full second flown in excess of 600 seconds (10 minutes). d) Additional points will be awarded for landing, depending upon distance from the spot marked by the organiser, according to the following table: Distance from spot (m) Points Distance from spot (m) Points 1 100 9 60 2 95 10 55 3 90 11 50 4 85 12 45 5 80 13 40 6 75 14 35 7 70 15 30 8 65 over 15 0 The distance is measured from the model aircraft nose when at rest to the centre of the spot. No points will be awarded for the quality of landing. No landing bonus will be awarded if the flight time exceeds 630 seconds. The measured distance is rounded to the nearest higher metre. e) For model aircraft still in the air when the 12 minutes expire, the elapsed flight time only will be taken into consideration for scoring, without any additional points for the precision landing. f) A classification based on decreasing number of points awarded will be compiled, called "Partial Score A" - see 5.3.2.6. 5.3.2.4. Task B - Distance a) This task must be completed within 7 minutes from the order of the starter, including towing time. The trial begins only after the glider has been released from the tow. b) When the model aircraft, in flight, first crosses Base A (imaginary vertical plane) in the direction to Base B, the actual flight time of 4 minutes maximum starts, during which time the model aircraft must complete as many legs as possible from the starting Base A to Base B and conversely. c) A visual system or a combined audiovisual system announces to the competitor when his model aircraft crosses the Base A or Base B (imaginary vertical planes). The absence of a signal will indicate that the model aircraft has failed to correctly cross the base. The instruments used to check the crossing of the vertical planes must assure the parallelism of such planes. Timing and signalling shall occur when any part of the model aircraft crosses the base. If an audiovisual system is used, signalling is also valid when the audio system fails. d) The model aircraft must be identified by the contest director or the flight-line manager to the judges at Base A and B during the launch. For this procedure the competitor or his helper must announce clearly the intention to start by calling their allocated signal (alpha, bravo. charlie, delta, echo or foxtrot). When he receives permission from the contest director or the flight-line manager to start, he must do so immediately otherwise another competitor will receive permission to start. If a competitor starts without official permission he will be called back and must land and again request permission to start. The competitor must stay within a distance of 10 metres either side of Base A during the timed flight. cont/ SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 14

Class F3B Multi-Task Gliders e) For a model aircraft which lands within 4 minutes flight time only the full 150 metre legs will be counted. For model aircraft still in the air when the 4 minutes flight time or 7 minutes expires, whichever comes first, only the completed legs at that moment will be taken into account. f) After having completed the task, the model aircraft must land in the area(s) determined by the contest director outside the safety area(s) otherwise the flight will be penalised with 100 points The penalty of 100 points will be a deduction from the competitor s final score and shall be listed on the score sheet of the round in which the penalisation was applied g) A classification based on decreasing number of total flown legs during the flight time will be compiled, and points given as described in 5.3.2.6., thus establishing the Partial Score B". 5.3.2.5. Task C - Speed a) This task must be completed within 4 minutes, from the order of the starter including towing time. The trial begins only after the glider has been released from the tow. After release of the tow-hook, the model aircraft must start the task at Base A within one minute. If the one minute period expires before the model aircraft has crossed Base A for the first time, flying from Base A to Base B, then the model aircraft must be landed and re-launched within the original working time period. b) The task consists of flying the distance starting from Base A, to Base B, and conversely, four legs in the shortest possible time. c) The flight time is recorded to at least 1/100 s when in flight the model aircraft first crosses Base A and completes four legs of the 150 metre course. d) An audio system will inform the competitor when the model aircraft crosses the Base A or Base B (imaginary vertical planes). The absence of a signal will indicate that the model aircraft has failed to correctly cross the Base. The instruments used to check the crossing of the vertical planes must assure the parallelism of such planes. The signal is given when any part of the model aircraft crosses the base. The source of the signal (horn, loudspeaker) must not be further then 30 metres away from the intersection of base A and the safety plane. e) During the timed flight the competitor must stay within a distance of 10 metres either side from Base A. f) After having completed the task, the model aircraft must land in the area(s) determined by the contest director outside the safety area(s). g) Model aircraft which come to rest before having completed the task will score zero. h) During task C the timed flight shall take place to one side of the safety plane, whilst all judges/time-keepers shall remain on the other side of the safety plane. The side which is to be flown shall be indicated by the organisers taking into account the direction of the sun, etc. The flight will be penalised with 300 points, when sighted by means of an optical aid, the safety plane is crossed by any part of the model aircraft. The instrument used to check the crossing of the vertical safety plane must also assure that the safety plane is orthogonal to Base A and Base B. The penalty of 300 points will be a deduction from the competitor s final score and shall be listed on the score sheet of the round in which the penalisation was applied. i) After release of the tow-hook, when the model aircraft has crossed Base A for the first time, flying in the direction from Base A to Base B, no further attempt is permitted unless the competitor signals his intention to re-launch before Base A is crossed. j) A classification based on increasing times to complete the four 150 metre legs will be compiled, and points given as described in 5.3.2.6., thus establishing "Partial Score C". 5.3.2.6. Partial Scores For each task the winner of each group receives 1000 points. a) Partial Score A for each competitor is determined as follows: cont/ Partial Score A = 1000 P 1 P W Where P 1 = points of the competitor obtained as 5.3.2.3. P W = points of the winner in the related group. SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 15

Class F3B Multi-Task Gliders b) Partial Score B for each competitor is determined as follows Partial Score B = 1000 D 1 D W Where D 1 = distance covered by the competitor as for 5.3.2.4 D W = distance covered by the winner in the related group. c) Partial Score C for each competitor is determined as follows 5.3.2.7. Total Score T W Partial Score C = 1000 T Where T 1 = time of the competitor as for 5.3.2.5. T W = time of the winner in the related group. 1 The competitor s Total Score for each round is compiled by adding the Partial Scores of all tasks. 5.3.2.8. Classification 5.3.2.9. Site If only five rounds are flown, the competitor s classification is determined by the sum of all Total Scores for each round. If more than five complete rounds are flown the lowest partial score of each task is omitted from the sum of all partial scores. To decide the winner when there is a tie, the two (or all who have the equal score) competitors will fly an additional round (three tasks). The competition must be held at a site having reasonably level terrain, with a reasonably low probability of slope or wave soaring. F3B FLYING FIELD LAYOUT (left hand layout shown) SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 16

Class F3J Thermal Duration Gliders 5.6. CLASS F3J - THERMAL DURATION GLIDERS Object: To provide a man-on-man contest for competitors flying radio-controlled thermal duration soaring gliders. In the contest, several qualifying rounds are flown. For each qualifying round, competitors are divided into groups. The scores in each group are normalised to give them meaningful scores irrespective of changing weather conditions during a round. The competitors with the top aggregate scores in the qualifying rounds then fly at least two further fly-off rounds as a single group to determine the final placing. The scheduled number of fly-off rounds shall be announced by the Contest Director before the start of the contest. 5.6.1. General Rules 5.6.1.1. Definition of a Radio Controlled Glider A model aircraft which is not provided with a propulsion device and in which lift is generated by aerodynamic forces acting on surfaces remaining fixed. Model aircraft with variable geometry or area must comply with the specification when the surfaces are in maximum and minimum extended mode. The model aircraft must be controlled by the competitor on the ground using radio control. Any variation of geometry or area must be actuated at distance by radio. 5.6.1.2. Prefabrication of the Model aircraft Paragraph B.3.1 a) of Section 4, Part 2 (builder of the model aircraft) is not applicable to this class. 5.6.1.3. Characteristics of Radio Controlled Gliders a) Maximum Surface Area... 150 dm 2 Maximum Flying Mass... 5 kg Loading... 12 to 75 g/dm 2 Minimum radius of fuselage nose... 7.5 mm b) The radio shall be able to operate simultaneously with other equipment at 10 khz spacing below 50 MHz and at 20 khz spacing above 50 MHz. When the radio does not meet this requirement, the working bandwidth (max. 50 khz) shall be specified by the competitor. c) Any transmission of information from the model aircraft to the competitor is prohibited, with the exception of signal strength and voltage of the receiver battery. Any use of telecommunication devices (including transceivers and telephones) in the field by competitors, helpers or team managers is not allowed. d) The competitor may use three model aircraft in the contest. e) The competitor may combine the parts of the model aircraft during the contest, provided the resulting model aircraft conforms to the rules and the parts have been checked before the start of the contest. f) For the sake of randomness of the starting order among the successive rounds, each competitor must enter three different transmitter frequencies with 10 khz minimum spacing. The organiser is entitled to use any of these three frequencies for setting the flight matrices. Once the competitor is given one of these three frequencies he must not change to another frequency for all flights during the whole of the preliminary rounds other than for reflights. In case of a reflight the competitor can be called to use either of these three frequencies for this reflight only, as long as the call is made at least 1/2 hour prior to the beginning of the reflight in written form to the competitor (or team manager when applicable). g) All ballast must be carried internally and fastened securely within the airframe. h) No fixed or retractable arresting device (i.e. bolt, saw tooth-like protuberance, etc) is allowed to slow down the model aircraft on the ground during landing. The underside of the model aircraft must not have any protuberances other than the tow hook and surface control linkages (with or without fairings). The tow hook must not be larger than 5 mm in frontal width and 15 mm frontal height. 5.6.1.4. Competitors and Helpers a) The competitor must operate his radio equipment himself. b) Each competitor is allowed three helpers. When a team manager is required, he is also permitted to help the competitor. A maximum of two helpers are permitted for towing during the launch as described in 5.6.8.2. SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 17

Class F3J Thermal Duration Gliders 5.6.2. The Flying Site 5.6.2.1. The competition must be held on a site having reasonably level terrain, which will minimise the possibility of slope and wave soaring. 5.6.2.2. a) The flying site shall include a marked launch corridor of 6 metres width with a central launch line. The launching corridor shall be arranged crosswind and shall include launch marks on the central launch line at least 15 metres apart, one for each competitor of a group. b) The flying site shall include landing spots, one for each competitor in a group. Each landing spot will correspond to one of the launching marks and will be arranged at least 30 metres downwind of the launching corridor. 5.6.2.3. The centres of the landing circles and the launch line must always be marked. At the discretion of the Contest Director, marks indicating the circumference of the circles may be omitted and replaced by the use of other means of measuring, such as a tape, to check distances from the centre of the circles. 5.6.2.4. Safety Rules a) Contact with an object within the defined safety area (including the launch corridor) will be penalised by deduction of 300 points from the competitor s final score. b) Contact with a person within the defined safety area (including the launch corridor) will be penalised by deduction of 1000 points from the competitor s final score. c) For each attempt only one penalty can be given, If a person and at the same attempt an object is touched the 1000 points penalty is applied. e) Penalties shall be listed on the score sheet of the round in which the infringement(s) occurred. f) If necessary the organiser may define a part of the airspace as safety space. In such a case he must appoint at least one official who observes the border (vertical plane) by a sighting device. This official must warn the pilot if his glider crosses the border. If the glider does not leave the safety space immediately a penalty of 300 points is given. 5.6.3. Contest Flights 5.6.3.1. a) The competitor will be allowed a minimum of five (5), preferably more, official flights. b) The competitor will be allowed an unlimited number of attempts during the working time. c) There is an official attempt when the model aircraft has left the hands of the competitor or those of a helper under the pull of the towline. d) In the case of multiple attempts, the result of the last flight will be the official score. e) All attempts are to be timed by two stopwatches. If no official time has been recorded, the competitor is entitled to a new working time according to the priorities mentioned in paragraph 5.6.4. 5.6.4. Re-flights The competitor is entitled to a new working time if: a) his model in flight or in the process of being launched collides with another model in flight, or with a model in the process of being launched. b) his model in flight or in the process of being launched collides with another competitor s towline. c) the competitor s towline is hit by another model in flight or in the process of being launched. d) the attempt has not been judged by the official time-keepers. e) his attempt was hindered or aborted by an unexpected event, not within his control. Crossed lines are not considered as reason for re-flight. f) A towline (other than his own) was not removed after launch and is blocking (covering) his own towline. To claim a re-flight considering the above mentioned conditions, the competitor has to make sure that the official timekeepers have noticed the hindering conditions and land his model as soon as possible after this event. Note that in the case the competitor continues to launch or continues to fly after hindering conditions affected his flight or does re-launch after clearing of the hindering condition(s), he is deemed to have waived his right to a new working time. cont/ SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 18

Class F3J Thermal Duration Gliders The new working time is to be granted to the competitor according to the following order of priorities: 1. in an incomplete group, or in a complete group on additional launching/landing spots; 2. if this is not achievable, then in a new group of several (minimum 4) re-flyers. New group of re-flyers can be completed by other competitors selected by random draw to the number of 4. If the frequency or team membership of the drawn competitor does not fit or the competitor will not fly, the draw is repeated; 3. if this is also not achievable, then with his original group at the end of the ongoing round. In priority-case 2 and 3, the better of the two results of the original flight and the re-flight will be the official score, except for the competitors who are allocated the new attempt. For those the result of the re-flight is the official score. A competitor of this group who was not allocated the new attempt will not be entitled to another working time in case of hindering. 5.6.5. Cancellation of a flight and/or disqualification 5.6.5.1. a) The flight is cancelled and recorded as a zero score if the competitor used a model aircraft not conforming to any item of rule 5.6.1. In the case of intentional or flagrant violation of the rules, in the judgement of the Contest Director, the competitor may be disqualified. b) The flight in progress is annulled and recorded as a zero score if the model aircraft loses any part during the launch or the flight, except when this occurs as the result of a mid-air collision with another model aircraft or towline. c) The loss of any part of the model aircraft during the landing (coming into contact with the ground) is not taken into account. d) The flight is cancelled and recorded as a zero score if the model aircraft is piloted by anyone other than the competitor. e) The flight is cancelled and recorded as a zero score if, during landing, some part of the model aircraft does not come to rest within 75 metres of the centre of the competitor's designated landing circle. 5.6.5.2. Neutralisation of a flight group (only for fly-off rounds) During the fly-off rounds and only within the first 30 seconds of the working time, the Contest Director has the right to neutralise the ongoing flight group in events leading to a reflight according to 5.6.4 a) e). If an event according to 5.6.4.a) e) occurs within the first 30 seconds of the working time, the Contest Director needs to: state the immediate neutralization of the group clearly to all competitors; stop the running working time; call all competitors to land as soon as possible. This round will be started again with the preparation time as soon as possible. 5.6.6. Organisation of the Flying. 5.6.6.1. Rounds and Groups a) The flying order for the initial qualifying rounds shall be arranged in accordance with the transmitter frequencies in use to permit as many simultaneous flights as possible. A minimum of 6 and preferably 8 to 10 competitors should be scheduled for each group. b) The flying order shall be scheduled in rounds sub-divided into groups. c) The flying order shall be determined by a matrix system that minimises situations where competitors fly together more than once (see paragraph 5.6.12.3). 5.6.6.2. Flying in Groups a) Competitors are entitled to five minutes preparation time, which is counted from the moment his group is called to take position at the designated launching area, to the start of the group's working time. b) The working time allowed to each competitor in a group shall be of exactly ten (10) minutes duration. cont/ SC4_Vol_F3_Soaring_12 Effective 1st January 2012 Page 19